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Medium severity · published Mar 4, 2022
CVE-2021-3744
A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory…
5.5
CVSS
0.5%
EPSS
No
On KEV
Description
A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 5.15; 5.15; 5.15; 5.15; 5.15 · source: NVD
BO
Build OF Quarkus · Redhat
2.0 · source: NVD
CL
Codeready Linux Builder · Redhat
8.0 · source: NVD
CL
Codeready Linux Builder Eus · Redhat
8.6 · source: NVD
CL
Codeready Linux Builder For Power Little Endian · Redhat
8.0 · source: NVD
CL
Codeready Linux Builder For Power Little Endian Eus · Redhat
8.6 · source: NVD
CC
Communications Cloud Native Core Binding Support Function · Oracle
22.1.3 · source: NVD
CC
Communications Cloud Native Core Network Exposure Function · Oracle
22.1.1 · source: NVD
CC
Communications Cloud Native Core Policy · Oracle
22.2.0 · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
DT
Developer Tools · Redhat
1.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.6 · source: NVD
Affected product
KE
Kernel
Linux
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3744
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3744
Exploit
http://www.openwall.com/lists/oss-security/2021/09/14/1
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2000627
Patch
https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680
Mailing List
https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0
Mailing List
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BLLVKYAIETEORUPTFO3TR3C33ZPFXQM/
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